2006

6.7

2017

6.8

1973

7.5

1982

5.0

1987

0.0

1984

7.0

1963

0.0

1991

6.8

2006

7.8

2017

6.6

1992

5.7

2016

3.5

2005

7.1

2001

7.8

2004

7.3

1995

5.9

1982

5.5

1953

5.5

1984

7.8

1955

6.0